University of Twente Student Theses
Thermoelectric properties of vertically aligned nanocomposite films
Slooten, Janiek van (2021) Thermoelectric properties of vertically aligned nanocomposite films.
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| Abstract: | Thermoelectric materials are a rapidly evolving research area as they are used in a wide range of applications. The optimizing of the thermoelectric properties is therefore of great interest. Using a new strategy with built in nanopillars, consisting of nanoparticles within a matrix of material, offer promising advantages as a key parameter, the thermal conductivity, could be lowered this way. The composite (La0.7Sr0.3MnO3)0.1 : (ZnO)0.9 is a candidate for promising thermoelectric properties. This composite was grown using pulsed laser deposition on 7 different substrates in order to investigate its growing behavior. The growth on a ZnO (0001) substrate showed the most promising results with a powerfactor (S2σ) of 23.6μW/(cmK2) which is in the range of the high-performance thermoelectric material Bi2Te3 at room temperature. [1] As seen on SEM images, it can be seen that the vertically aligned nanocomposite has been successfully grown on this sample. Clear LSMO pillars were observed within the ZnO matrix. |
| Item Type: | Essay (Bachelor) |
| Faculty: | TNW: Science and Technology |
| Subject: | 50 technical science in general |
| Programme: | Advanced Technology BSc (50002) |
| Link to this item: | https://purl.utwente.nl/essays/93038 |
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